%{--always used in show.gsp--}%
Created By:
<g:link controller="user" action="show" id="${trace.createdBy.id}">
    ${trace.createdBy.name}
</g:link> at <g:formatDate date="${trace.dateCreated}"/>
| Updated By:
<g:link controller="user" action="show" id="${trace.lastUpdatedBy.id}">
    ${trace.lastUpdatedBy.name}
</g:link> at <g:formatDate date="${trace.lastUpdated}"/>